Machine for opening and cleaning cotton and the like



March l2, .1929. vWILD T AL yMACHINE FOR OPENING AND CLEANING COTTON ANDTHE LIKE 5 sheets-sheet4 vFiled May 19, 1927 L M/CZ ma @umu March l2,1929. L wlLD ET AL 1,705,433

MACHINE FOR OPENING AND CLEANING COTTON ANU THE LIKE Filed May 19, 19273 Sheets-Sheet 2 2 u mm L. WILD El" AL March l2, 1929.

MACHINE Fon PENING AND CLEANING coTToN AND THE LIKE Filled May 19, 19273 Sheets-Sheet Patented Mar. 12, 1929.

UNITE STTES LiaoNAnn WILD AND FRANK eUiNN, or BoL'roN, ENGLAND.

MACHINE FOR OPENING AND CLEANING COTTON AND THE `LIKE. 'i

Application filed May 19, 1927, Serial No. 192,665, and in Great BritainAugust 18, 1926.

This. invention relates to machines for opening and cleaning cotton andthe like, of c the type in which the cotton or other fibrous material issubjected to the combing and Vopening action of a saw tooth roll orcylinder. AT he object of the invention is to provide a more eiiicientfeeding device, particularly for short fibred material, ensuringthorough cleaning with a ,safeguard against damage to the roll saw teethor the like by pieces of metal or hard substances in the material .undertreatment. y

rihe invention comprises the mounting of the feed rolls or rollers on apivotal or yielding frame or carrier which is retained in' its normal oroperativeposition relatively to the saw tooth roll or cylinder bysprings or equivalent means such as will permit of the automaticrecession of the fe-ed rollersfor the release of hard pieces of metal orother obstructive substances.

The invention further comprises a feedV strippingbrush or lthe likearranged therewith for the cleaning of the saw tooth roll orcylinder.y

Referring to the two accompanying sheets Vof. explanatory drawingsFigure l is a si le vi-ew partly in section illustrating a cottonopening or cleaning machine constructed in one convenient form inaccordance with our invention. l f

Figure 2 is a detail view drawn to a larger scale of part of the machineillustrated in Figure 1 and is a sectional side elevation on the line 22 of Figure 4.

Figure 3 is a sectional side elevation on the line 3-3 of Figure 4.

Figure i is an end elevation of the feed mechanism.

Figure 5 is a sid-e elevation of part of the machine looking from rightto left of Figure 4.

Figure 6 is a side elevation showing part of the side of the machineopposite to that shown in Figure 5. y

The cotton or other material to be'cleaned and opened is placed upon thetravelling lat- I the gear wheels c, from the shaftc, which serves topress down the cotton or material power shaft atthe'base of the machine(see p y Figure l). i

The ends of the rollers g, 7L and z' are carriedin brasses at theopposite sides-of the machine, the ends of the roller z' being carriedin upper brasses m; and the ends of the f' rollers g, 71, in lowerbrasses n.v Springs o loaded by screws p hold theupper brasses againstthe lower brasses so as to resist yieldingly any tendency of the rolleri to lift when a thick lump or layer of the cotton orother materialpasses between such roller and the rollers g, L.

The trunnion like ends g the block rvv are also carried in the lowerbrasses n. l Each of the latter is carried by two. side plates ssuspended by pivot pins 25 from the top mem'- ber u of a. frame n. Thesecuring of the said bottom brassin position vmaybe effected by thenutsfon the't'runnions upon the'blockr. Arms w fulcrumed on a sleeveupon t-he said trunnions gare interconnected by a cross member fc whichextends across the front of the machine as shown in Figure l, and servesfor drawing back the brasses with the feed rollers g, 7L, z', and blockr it any solid material should pass through the feed rollers to the sawtooth `roller l0. The block fr' has troughs or grooves therein as shownin the gures to receive the two rollers g, L as shown, the said rollersbeing in contact with the surface of said grooves across the machine soas to be supported thereby. The side .of said block adjacent the sawtooth roll or cylinder l0 is made to a concave shape corresponding withthe perimeter of such roll and such concavity may be serrated as shownin the iigures.

The brasses m, n supported by their pivotal carrier consisting of theside plates s are pressed towards the saw tooth roll l() bysprings l1loaded by screws 12 (Figure 3) and the movement of thebrasses with theYparts journalled or secured therein, towards said roll 10 isV limited bytwo adjustable screwed stops 13. It will be seen that with In some casesthe bearing,` block 1 may be dispensed with but the pivotal arrangementof the feed rollers allows `the same to recede it' necessary so as toavoid damage to the saw tootliroll or cylinder it solid material ispassing through the nip ot the feed rollers to said roll or cylinder.

By arranging` the cross member a; of the means for the hand manipulationof the pivotal carriers of the feed rollers so that it rests upon thecurved edge of the machine frame, the saidmember and connected parts areheld automatically in the position to Which they are Withdrawn with thecross member upon said edge 15. Y

` We may suspend a rotary stripping brush 16 by plates 17 from thebearing block o" and provide two cam like parts 1S upon short shafts 19with'handles 20 thereon for engaging said plates and forcing the brushagainst the saw tooth roll or cylinder for cleaning` the surface of' thelatter. The brush is rotated by a chain (Figure 5)v from the cylinder 10in a direction opposite to that of the cylinder surface..

The saw tooth roll or cylinder 10 rotates at high speed andthe'niaterial which becomes impaled upon the points of itsteet-h iscaught by the adjustable knife or blade 21 which extends across saidroll and is Vsituated at the entrance to the suction chute 22. The dirtin the material is separated by the knife edge oi 21 and the cleanedmaterial is drawn by Way ot' the chute-22 on to the cage 23 in the knownmanner. f

What We cla-im iszf- 1Q In machinesV of the type set orth'for 'opening`and cleaning cotton and the like, in combination, a high speed saifvtooth roll, a blade extending across the vsaid roll, a suction chuteextending,` from said blade for removing the cotton trom said roll, afeed lattice, a pivotally mounted frame between said lattice and thesavv tooth roll, upper and lower feed rollers mounted in said trame,means for rotating` saidI `feed rollers, resiiient means pressiiig,` thesaid 'frame towards the saw too-th roll, and a member extending acrossthe machine and connected to the pivotal frame for the hand manipulationof the same.

2. In machines of the type set forth for opening and cleaning cotton andthe like having the combination of parts claimed in claim y 1, a blockupon the pivotal fra-me With troughs therein to receive and support thelower feed rollers throughout their length, the aceot saidblock adjacentto the saw tooth roll be'- ing made concave to correspond Withtheperimeter of such roll.L

3. In machines of the type set iorth for opening` and cleaning cottonand the like having` the combination of parts claimed claim 1, a blockupon the pivotal frame With troughs therein to receive and support thelovver vfeed rollers throughout their length, a positively driven'rotarystripping brush pivotally suspended from said block, and means forpressingv saidfbru-sh into engagement with the ysaw tooth roll.` l

In testimony whereof We have signed our names to this specification. l

LEONARD IVILD. FRANK QUINN.v

